The Clubmaster Classic is Briston's signature collection. Its originality comes from its "square cambered" shape, straight out of the Roaring Twenties, which gives it a very watchmaking look. It stands out at first glance. Its 40 mm case is both elegant and timeless. The tortoise-shell acetate gives it character and allows the material to play with transparency. Brown acetate case with a blue nylon strap. Fixed gold-tone stainless steel bezel. Blue dial with gold-tone hands and Arabic numeral & index hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Date display at the 6 o'clock position. Chronograph - two sub-dials displaying: 60 second and 24 hour. Miyota Caliber OS21 quartz movement. Scratch resistant mineral crystal. Pull / push crown. Solid case back. Cushion case shape, case size: 40 mm. Band width: 20 mm. Buckle clasp. Water resistant at 100 meters / 330 feet. Functions: chronograph, date, GMT, second time zone, hour, minute, second. Clubmaster Series. Fashion watch style. Watch label: Japan Movt. Briston Clubmaster Blue Dial Men's Watch 19140.PRA.T.25.NIB.